MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03449nab a22004097a 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
G63978 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20240919020944.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
210726s1997 xxu|||p|op||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
1435-0653 (Online) |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
0011-183X |
| 024 8# - OTHER STANDARD IDENTIFIER |
|---|
| Standard number or code |
https://doi.org/10.2135/cropsci1997.0011183X003700020017x |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 072 #0 - SUBJECT CATEGORY CODE |
|---|
| Subject category code |
F01 |
| 072 #0 - SUBJECT CATEGORY CODE |
|---|
| Subject category code |
U10 |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
CIS-4380 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Crossa, J. |
| Miscellaneous information |
Genetic Resources Program |
| Field link and sequence number |
CCJL01 |
| 9 (RLIN) |
59 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Sites regression and shifted multiplicative model clustering of cultivar trial sites under heterogeneity of error variances |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Madison (USA) : |
| Name of publisher, distributor, etc. |
CSSA : |
| -- |
Wiley, |
| Date of publication, distribution, etc. |
1997. |
| 340 ## - PHYSICAL MEDIUM |
|---|
| Material base and configuration |
Computer File Printed |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Peer review |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Previous papers have developed the shifted multiplicative model with one multiplicative term (SHMM1) as a model for clustering yield trial sites or cultivars into groups in which cultivar rank changes are statistically negligible. Properties of SHMM1 are proportionality of predicted cultivar differences within sites, and of site differences within cultivars. The latter constraint is relaxed if the sites regression model with one multiplicative term (SREG1) is used instead of SHMM1. Dendrograms for the two methods are identical, but SHMM and SREG analyses of clusters suggested by the dendrogram may lead to different conclusions concerning acceptability of a particular cluster. This study compared SREG clustering to SHMM clustering in two international maize (Zea mays) cultivar trials, when the data to which models were fitted were original unscaled cell means, and, as a way to cope with site to site heterogeneity of error variance, cell means scaled by dividing by the standard error of a cultivar mean within the particular site. Results of both trials confirmed the expectation that SREG clustering would occasionally allow clusters to merge which would not be statistically acceptable under SHMM analysis. This occurred at a cost of a modest increase in percentage and magnitude of significant crossover interactions within the clusters. Both trials exhibited significant site to site heterogeneity of error variances. Scaling of data resulted in more effective removal of significant rank-change interactions from within clusters, provided that the test criterion was based on the assumption of heterogeneous variance. Besides occasionally allowing larger clusters, advantages for SREG clustering of sites are (i) all solutions (including constrained non-crossover solutions) exist in closed form and (ii) the analysis of scaled data is equivalent to a weighted least squares analysis, neither of which holds for SHMM |
| 536 ## - FUNDING INFORMATION NOTE |
|---|
| Text of note |
Genetic Resources Program |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
9705|Crop Science Society of America (CSSA)|EE|R97ANALY|Maria|Fdo|1 |
| 594 ## - STAFFID |
|---|
| StaffID |
CCJL01 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Crops |
| 9 (RLIN) |
1069 |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Statistical methods |
| 9 (RLIN) |
2624 |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Variety trials |
| 9 (RLIN) |
2474 |
| Source of heading or term |
AGROVOC |
| 653 0# - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
CIMMYT |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Cornelius, P.L. |
| 9 (RLIN) |
9555 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Crop Science |
| Note |
630748 |
| Related parts |
v. 37, no. 2, p. 406-415 |
| Place, publisher, and date of publication |
Madison (USA) : CSSA : Wiley, 1997. |
| Record control number |
G444244 |
| International Standard Serial Number |
1435-0653 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
|---|
| Link text |
Access only for CIMMYT Staff |
| Uniform Resource Identifier |
https://hdl.handle.net/20.500.12665/328 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Suppress in OPAC |
No |